Results 41 to 50 of about 311,379 (303)

Testing of Level Shifters in Multiple Voltage Designs [PDF]

, 2007
The use of multiple voltages for different cores is becoming a widely accepted technique for efficient power management. Level shifters are used as interfaces between voltage domains.
Al-Hashimi, Bashir, Zain Ali, Noohul Basheer, Zwolinski, Mark   +2 more
core   +1 more source

Comprehensive Exploration of Limitations of Simplified Machine Learning Algorithm for Fault Diagnosis Under Fault and Ground Resistances of Multiterminal High-Voltage Direct Current System

Journal of Sensor and Actuator Networks
High power density and better efficiency make the multiterminal high-voltage direct current (MT-HVDC) system the best candidate for long-distance bulk power transfer in the cases of onshore and offshore power systems.
Raheel Muzzammel
doaj   +1 more source

Enhancing Tunnel Fault-Resistance with Combined Seismic Joints and Steel–Polypropylene Fiber Concrete Linings

Buildings
Tunnel engineering is frequently undertaken in complex geological environments, which present heightened risks during construction and operation, particularly in active fault zones. This necessitates the enhancement of fault resistance.
You Wang, Zixi Yin, Rui Wang, Bosong Ding, Ziwei Wang   +4 more
doaj   +1 more source

Emergency braking for free piston energy converters [PDF]

, 2005
Free piston energy converters are a potential technology for future hybrid vehicles, as well as stationary power generation applications. A candidate 2-stroke system comprises of two opposing combustion chambers with a common piston rod, and integrated ...
Bingham, Chris, Howe, D, Long, S, Wang, J, West, M   +4 more
core   +1 more source

Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems

IET Generation, Transmission & Distribution, 2021
The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high ...
Roja Rouhani, Iman Sadeghkhani, Josep M. Guerrero   +2 more
doaj   +1 more source

Current–time characteristics of resistive superconducting fault current limiters [PDF]

, 2012
Superconducting fault current limiters (SFCLs) may play an important role in power-dense electrical systems. Therefore, it is important to understand the dynamic characteristics of SFCLs.
Blair, Steven Macpherson, Booth, Campbell, Burt, Graeme   +2 more
core   +1 more source

Detailed modelling and analysis of digital mho distance relay with single-pole operation

Acta Polytechnica, 2021
This paper introduces a methodology for modelling a digital admittance-type distance relay using PSCAD/EMTDC. The proposed distance relay was tested in a simulation of the Brazilian power grid with predetermined fault scenarios. The goal of this paper is
Paulo Henrique Barbosa de Souza Pinheiro, Mayara Helena Moreira Nogueira Santos, Angelo Cesar Colombini, Bruno Wanderley França, Marcio Zamboti Fortes   +4 more
doaj   +1 more source

Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator winding [PDF]

, 2005
An improved model for simulating the transient behavior of salient-pole synchronous generators with internal and ground faults in the stator winding is established using the multi-loop circuit method.
Bi, D.Q., Howe, D., Wang, W.J., Wang, X.H., Zhu, Z.Q.   +4 more
core   +1 more source

Backup-Protection Scheme for Multi-Terminal HVDC System Based on Wavelet-Packet-Energy Entropy

IEEE Access, 2019
DC fault protection is a major issue in multiterminal high-voltage DC current transmission systems. Most studies have focused on primary protection, which considers a different theory.
Qing Huai, Kaipei Liu, Liang Qin, Xiaobing Liao, Shu Zhu, Yuye Li, Hua Ding   +6 more
doaj   +1 more source

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker, Kyle Kemp, Perri Tutelman, Sharon H. J. Hou, Paul Fairie, Maria Santana, Gregory M. T. Guilcher, Taryn Fay‐McClymont, Glenda Bendiak, Wendy Pelletier, Nicola Wright, Fiona Schulte   +11 more
wiley   +1 more source